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<?php
namespace Kontrolio\Rules\Core;
use Kontrolio\Rules\AbstractRule;
/**
* Nullable values validation rule.
*
* @package Kontrolio\Rules\Core
*/
class IsNull extends AbstractRule
{
* Validates input.
* @param mixed $input
* @return bool
public function isValid($input = null)
return $input === null;
}
franzose /
kontrolio
